An assembled building wall based on BIM technology and its rapid construction method

Abstract

The present invention discloses a prefabricated building wall based on BIM technology and a rapid construction method thereof, belonging to the technical field of prefabricated buildings. It includes a prefabricated wall body, on one side surface of the prefabricated wall body, there is a groove cavity, on one side of the prefabricated wall body, there is a clamping strip block, at the bottom of the prefabricated wall body, there is a combined convex block, around the clamping strip block, there is a combined sealing strip, around the combined convex block, there is a sealing sleeve, and in the groove cavity, there is a driving device, and the driving device is used to drive the clamping strip block and the combined sealing strip to protrude out of one side surface of the prefabricated wall body. The above structure can realize the rapid installation of the prefabricated wall body with a concrete frame and a prefabricated floor slab. Adopting the technical solution of the present invention can replace the use of various coatings in the prior art, thereby avoiding the cracking problem occurring at the joint position, ensuring the reliability of the connection between the prefabricated wall body and other structural members, and ensuring the reliability of sealing.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated buildings, and specifically to a prefabricated building wall based on BIM technology and a rapid construction method therefor. Background Technique

[0002] BIM technology is an important technology for using 3D software to plan and integrate information on the design, construction, operation, etc. of buildings. In the aspect of prefabricated buildings, the exterior wall is often designed based on BIM technology, then prefabricated, and then the prefabricated wall panels are installed to achieve the rapid installation of buildings.

[0003] A prefabricated building refers to a building in which a large amount of on-site work in the traditional construction method is transferred to a factory. Building components and fittings (such as floor slabs, wall panels, stairs, balconies, etc.) are processed and manufactured in the factory and transported to the building construction site, and are assembled and installed on-site through reliable connection methods.

[0004] In actual construction of existing prefabricated buildings, a method of assembling a concrete frame with precast walls and precast floor slabs is mostly adopted. A concrete frame is poured on the construction surface, and then the precast floor slabs are installed layer by layer. After the precast floor slabs are installed, the precast walls are hoisted onto the precast floor slabs by a hoisting device. Multiple groups of steel bars are inserted and matched between the precast walls and the precast floor slabs, and the precast walls are clamped and matched with the concrete frame. The above-mentioned precast walls are also clamped and matched with each other. After the installation between the above-mentioned precast walls, precast floor slabs and concrete frame is completed, the gap is filled with sealing cement slurry or sealing polymer material to achieve sealed connection. However, as the service life of the building extends, cracks are likely to appear at the connection positions, resulting in water leakage. In addition, the assembly efficiency between the above-mentioned precast walls, precast floor slabs and concrete frame is low, and repeated debugging is required, resulting in high construction costs. Summary of the Invention

[0005] 1. Problems to be Solved

[0006] One of the purposes of the present invention is to solve the problems of low installation efficiency between precast walls and precast floor slabs or concrete frames during the construction of existing prefabricated buildings, and poor sealing performance at the joints of each component, and to provide a prefabricated building wall that can effectively solve the above problems.

[0007] The second purpose of the present invention is to provide a rapid construction method for a prefabricated building wall based on BIM technology, which uses BIM technology to complete the design, production and assembly of precast walls. Users can more accurately and timely understand the overall progress change of the project and the problems in the construction process, further improving the construction efficiency.

[0008] 2. Technical Solutions

[0009] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0010] A prefabricated building wall based on BIM technology of the present invention includes a precast wall, and is characterized in that it further includes a sealing sleeve, wherein:

[0011] A clamping strip block and a combining convex block are installed on the assembling side of the precast wall, and the clamping strip block and the combining convex block are respectively located on different assembling sides of the precast wall;

[0012] A combining sealing strip is provided around the clamping strip block; a sealing sleeve is provided around the combining convex block.

[0013] By installing a combining sealing strip and a sealing sleeve on the assembling side, while completing the assembly of the precast wall, the subsequent waterproof sealing operation is also completed, thereby significantly improving the efficiency of wall installation.

[0014] Furthermore, a cavity is processed on one side surface of the precast wall, and a driving device is arranged in the cavity. The driving device is used to drive the clamping strip block and the combining sealing strip to protrude from the assembling side of the precast wall, and the driving device is also connected to the sealing sleeve (500) for driving the sealing sleeve (500) to protrude from the assembling side of the combining convex block.

[0015] Furthermore, a clamping groove is arranged on the assembling side of the precast wall, and the clamping strip block is arranged in the clamping groove; the cross-section of the clamping strip block is integrally trapezoidal, and arc-shaped clamping grooves are arranged on the side walls where the two waists of the clamping strip block are located. The arc-shaped clamping grooves are arranged along the length direction of the clamping strip block, and a combining sealing strip is installed in the arc-shaped clamping grooves.

[0016] Furthermore, a plurality of through holes are processed through the clamping strip block along its length direction, and a combining pin is inserted and installed in each through hole. One end of the combining pin extending into the cavity is connected to the driving device, and the other end extending out of the clamping strip block is provided with a ball. The combining pin is used to drive the clamping strip block to protrude from the clamping groove;

[0017] A first sinking groove is processed at one end of the through hole far from the cavity, and a first combining gasket is correspondingly processed on the pin body of the combining pin. The first combining gasket is close to or away from the bottom of the first sinking groove;

[0018] A second sinking groove is processed at the other end of the through hole close to the cavity, and a second combining gasket is correspondingly processed on the pin body of the combining pin. The second combining gasket is close to or away from the bottom of the second sinking groove.

[0019] Further, the driving device includes driving pins, a driving plate, a driving wheel, and a driving wedge. A plurality of driving pins are provided, all vertically arranged along the length direction of the side wall of the groove cavity. The end of the driving pin located inside the groove cavity is fixedly connected to the driving plate. A driving wheel is fixedly installed on the driving plate, and the driving wheel abuts against one side of the driving wedge. The other side of the driving wedge is connected to the driving support plate through an extrusion wedge. The driving support plate is slidably connected to the support slide bar on the one hand and fixedly connected to the coupling pin on the other hand. The support slide bar and the coupling pin are arranged in parallel. The support slide bar is vertically arranged on the side wall of the groove cavity, and a support spring is sleeved on the support slide bar. A telescopic spring is sleeved on the pin body of the coupling pin between the second coupling gasket and the driving support plate.

[0020] Further, the coupling sealing strip is installed at one end of the sealing bracket. The other end of the sealing bracket penetrates through the side wall of the groove cavity and is slidably installed on the guiding slide bar. And the sealing bracket is drivingly connected to the driving wedge through a driving head. The guiding slide bar is installed on the side wall of the groove cavity, and a guiding spring is sleeved on the guiding slide bar.

[0021] Further, the sealing sleeve is installed on the surrounding bracket. An installation bracket is arranged in the groove cavity. A slide bar is provided on the installation bracket. The surrounding bracket is slidably installed on the slide bar. A coupling spring is sleeved on the slide bar. The two ends of the coupling spring respectively abut against the installation bracket and the surrounding bracket. And an extrusion roller is fixedly installed on the surrounding bracket. The rim of the extrusion roller abuts against the bottom of the extrusion wedge.

[0022] Further, a clamping groove is machined on the side wall of the groove cavity where the clamping strip block is located, and a connecting strip block is installed in the clamping groove. A sealing groove is arranged around the coupling convex block. The sealing sleeve is arranged around in the sealing groove.

[0023] A rapid construction method for an assembled building wall based on BIM technology of the present invention includes the following steps:

[0024] First step: Create a three-dimensional model of the construction project based on BIM technology. Design the building design, construction, and operation plans through the three-dimensional model, and design and process precast components based on this.

[0025] Second step: Reserve a groove cavity on the reserved steel bars of the precast wall, and reserve and install the abutting pipe on the steel bars, and embed each formed part, and then pour concrete until the precast wall is formed, so that a reserved groove cavity, a clamping groove, a perforation, and a jack are formed on the precast wall.

[0026] Third step: Transport the precast wall, and install the coupling convex block, the coupling sealing strip, the sealing sleeve, the clamping strip block, and the driving device in the groove cavity at the job site to complete the installation of the precast wall.

[0027] Step 4: Pour a concrete frame on the job site in advance, and pre-reserve mating clamping grooves on the side of the concrete frame close to the precast wall.

[0028] Step 5: Install the precast floor slab by means of a hoisting device. After the precast floor slab is installed, install the precast wall by means of the hoisting device.

[0029] Step 6: Combine the precast wall with the frame through the above-mentioned clamping strip blocks and combined sealing strips, and combine and fix the precast walls through the clamping strip blocks and combined sealing strips.

[0030] Step 7: Combine the lower end of the precast wall with the precast floor slab through the above-mentioned combined convex blocks and sealing sleeves, and combine and fix the upper and lower ends of the precast wall through the combined convex blocks and sealing sleeves.

[0031] Step 8: Install precast stairs, balconies, external hanging scaffolds and other precast components.

[0032] Step 9: Final inspection upon completion.

[0033] Among them, in Step 3, the precast components on the site are placed in zones according to the project type, model, and installation sequence.

[0034] During the hoisting and lowering process of the precast wall, when the precast wall approaches the precast floor slab, first manually adjust the polyurethane resin installation guide to the insertion pipe, and then slowly install the reserved steel bars into the steel bar sleeve along the guide. Before the steel bars of the precast wall are tied, spray a thin layer of polymer bonding mortar with a thickness of 3 - 5 mm on the concrete pouring surface to be treated.

[0035] Furthermore, the BIM technology is architected based on the Revit platform, and the system includes the following modules:

[0036] Model entry module, used to create virtual design drawings of different types of building facilities, and create process templates of building facilities based on BIM technology.

[0037] Model parsing module, used to plan the process templates of the created building facilities, split building components according to the principle of taking changed nodes and the connection points between building standard sections and non-standard sections as the splitting points, and obtain creation instructions for BIM component models.

[0038] Model loading module, used to respond to the creation instructions of BIM component models, load model data corresponding to the target BIM component models, and parse the index file of Revit in the model data to obtain BIM files.

[0039] A model creation module, which is used to determine the coordinate parameters of each point in the component, establish the axis network coordinate system of the component in the obtained BIM file, supplement and extract the design information of the components in the BIM model, determine the endpoint coordinates and breakpoint coordinates of the BIM model components, and create and display the corresponding preset model according to the coordinate grid data and material data of the corresponding model;

[0040] A model adjustment module, which is used to input parameters to change the parametric component family of the geometric shape of the model, perform safety adjustments, and determine the BIM model of the building facilities based on the Revit platform;

[0041] A model upload module, which is used to upload the model to the BIM model resource library, classify and manage the model according to its type, and store it in the cloud platform;

[0042] A model extraction module, which is used for administrators and users in the system to extract and apply the model, and present it in the form of a thumbnail list.

[0043] Furthermore, the model data corresponding to the target BIM component model is imported into the file of the component model based on the CAD drawing. The CAD drawing file is in DXF format, and the system obtains the storage path of the CAD file, obtains the drawing data of the CAD drawing file, and converts the drawing into a data format file.

[0044] The data of the CAD drawing file also includes the ID, file name, storage path of the file, and upload time of the CAD file. The data format of the data format file is the.index file format type.

[0045] The model extraction module is loaded in the management background of the preset model creation system. The management background of the preset model creation system can display the classification types of the BIM model, display the preset models created by BIM according to the type classification, and display the hierarchical information of the BIM model.

[0046] The model extraction module can also analyze the text file of the BIM model from the.csv format file of the BIM model in the structural calculation instruction of the Revit platform and export the text format of the text file.

[0047] Compared with the prior art, the beneficial effects of the present invention are:

[0048] An assembled building wall of the present invention optimizes the overall structure of the precast wall. In particular, a groove cavity is reserved in the precast wall in advance, and a clamping strip block and a combined convex block are telescopically installed in the groove cavity. When the precast wall is installed, the clamping strip block and the combined convex block are used to be clamped and fixed with the precast floor slab or the concrete frame to complete the connection, effectively improving the assembly efficiency. At the same time, through the arrangement of the sealing strip and the sealing sleeve, after the assembly is completed, a sealing effect is achieved, replacing the use of various coatings in the prior art, avoiding the cracking problem at the joint position, thereby ensuring the reliability of the connection between the precast wall and other structural members, ensuring the reliability of the seal, and further improving the service life of the entire assembled building.

[0049] A rapid construction method for an assembled building wall based on BIM technology of the present invention uses BIM technology to create a three-dimensional model of a construction project, optimizes the design, construction, and operation plans of the building through the three-dimensional model, designs and processes precast wall panels based on this, and finally completes the construction and assembly of the assembled building, which helps to realize the linkage of each link, so that users can more accurately and timely understand the overall progress change of the project and the problems in the construction process, and further improves the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 The front view after the precast wall is assembled with the concrete frame and the precast floor slab;

[0051] Figure 2 The three-dimensional structure schematic diagram after the precast wall is assembled with the concrete frame and the precast floor slab;

[0052] Figure 3 The structure schematic diagram of the assembly of the precast wall with the concrete frame (or the precast floor slab);

[0053] Figure 4 The structure schematic diagram of the precast wall;

[0054] Figure 5 The structure schematic diagram of the precast wall after being partially cut open;

[0055] Figure 6 For Figure 5 The enlarged structure schematic diagram at the cut-open surface in

[0056] Figure 7 The structure schematic diagram of the through hole;

[0057] Figure 8 For Figure 7 The structure schematic diagram from another perspective in

[0058] In the figure:

[0059] 100, Prefabricated wall; 110, Groove cavity; 111, Card slot; 120, Clamping groove; 130, Cover plate; 140, Jack; 150, Abutting pipe;

[0060] 200, Clamping bar block; 210, Arc clamping groove; 220, Through hole; 221, First sinking groove; 230, Combining bolt; 231, First combining gasket; 232, Second combining gasket; 233, Ball; 234, Driving support plate; 235, Supporting slide bar; 236, Supporting spring; 237, Connecting bar block; 238, Driving head; 239, Driving wedge block; 2391, Extrusion wedge block; 23a, Telescopic spring; 240, Driving pin; 241, Driving plate; 242, Driving wheel;

[0061] 300, Combining convex block;

[0062] 400, Combining sealing strip; 410, Sealing bracket; 420, Guide slide bar; 421, Guide spring;

[0063] 500, Sealing sleeve; 510, Surrounding bracket; 520, Slide bar; 530, Mounting bracket; 540, Combining spring; 550, Extrusion roller. Detailed implementation mode

[0064] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0065] It should be noted that in the description of the present invention, the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0066] Meanwhile, in the description of the present invention, unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", "fixation", "swivel connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] In addition, it should be understood that for the convenience of description, the dimensions of the various components shown in the drawings are not drawn in accordance with the actual proportional relationship. For example, the thickness or width of some layers can be exaggerated relative to other layers.

[0068] Embodiment 1

[0069] As Figure 1-2 shown, a prefabricated building wall body in this embodiment includes a prefabricated wall body 100. The assembly side of the prefabricated wall body 100, that is, the side of the wall body, is connected to the components to be assembled, such as walls, floor slabs, or concrete frames. The prefabricated wall body 100 in this embodiment has four assembly sides. The assembly sides are provided with clamping strip blocks 200 and engaging convex blocks 300. The clamping strip blocks 200 and the engaging convex blocks 300 are respectively located on different assembly sides of the prefabricated wall body 100. As Figure 3 shown, in this embodiment, the clamping strip blocks 200 and the engaging convex blocks 300 are respectively arranged on two adjacent assembly sides. Taking the orientation in Figure 3 as an example for description, the clamping strip blocks 200 are installed on the vertical assembly sides of the prefabricated wall body 100 (that is, the left or right side of the wall body), and the engaging convex blocks 300 are installed on the horizontal assembly sides of the prefabricated wall body 100 (that is, the bottom or top of the wall body). When the prefabricated wall body 100 is assembled, by directly clamping the clamping strip blocks 200 and the engaging convex blocks 300 with the corresponding grooves or bayonets processed on the prefabricated floor slab or concrete frame to be connected, the assembly of the prefabricated wall body 100 can be completed. Meanwhile, as Figure 1 and Figure 4 shown, a combined sealing strip 400 is arranged around the clamping strip blocks 200 in this embodiment. After the assembly is completed, the combined sealing strip 400 closely adheres to the assembly connection part of the two components to play a sealing role. Similarly, as Figure 3 shown, a sealing sleeve 500 is arranged around the engaging convex blocks 300 for sealing.

[0070] During the construction of the prefabricated wall of the present invention, a groove cavity 110 is reserved in advance on the prefabricated wall 100. Specifically, the clamping strip block 200 and the combined sealing strip 400 are installed on one side of the prefabricated wall 100, and the combined convex block 300 and the sealing sleeve 500 are installed at the lower end position of the prefabricated wall 100. When the hoisting equipment installs the prefabricated wall 100, the clamping strip block 200 and the combined sealing strip 400 are combined with the concrete frame (or precast floor slab), and the combined convex block 300 and the sealing sleeve 500 are combined with the precast floor slab (or concrete frame). Thus, the rapid installation of the prefabricated wall 100 with the concrete frame and the precast floor slab can be realized. With the above design of the present invention, not only the assembly operation is simplified and the assembly efficiency is improved, but also the use of various coatings in the prior art to improve the waterproof and sealing performance of the prefabricated building can be replaced, thereby avoiding the cracking problem at the joint position and ensuring the reliability of the connection between the prefabricated wall 100 and other structural members, as well as the reliability of the seal.

[0071] As a further improvement of this embodiment, as Figure 3-5 shown, a groove cavity 110 is machined on the side surface of the prefabricated wall 100. A driving device is arranged in the groove cavity 110, and a cover plate 130 is arranged on the surface of the groove cavity 110. The driving device is used to drive the clamping strip block 200 and the combined sealing strip 400 to protrude from the assembly side of the prefabricated wall 100 to complete the connection between the prefabricated wall 100 and the concrete frame (or precast floor slab), and the driving device is also connected to the sealing sleeve 500 to drive the sealing sleeve 500 to protrude from the assembly side of the combined convex block 300 to ensure a reliable fit after the assembly side of the prefabricated wall 100 is reliably combined with the precast floor slab (or concrete frame).

[0072] Specifically, as Figure 3-5 shown, a clamping groove 120 is recessed from the assembly side of the prefabricated wall 100 into the groove cavity 110. The clamping groove 120 is arranged along the length direction of the prefabricated wall 100, and the clamping strip block 200 is clamped in the clamping groove 120. The cross-section of the clamping strip block 200 is generally trapezoidal in structure. Arc-shaped clamping grooves 210 are arranged on the surfaces where the two waists of the clamping strip block 200 are located. The arc-shaped clamping grooves 210 penetrate along the length direction of the clamping strip block 200, and the driving device drives the clamping strip block 200 to protrude from the notch of the clamping groove 120.

[0073] The cross-section of the clamping strip block 200 is generally trapezoidal in structure. A clamping groove matching with the clamping strip block 200 is reserved in advance on one side of the concrete frame. When the prefabricated wall 100 is combined with the precast floor slab, the driving device drives the clamping strip block 200 to protrude from the notch position of the clamping groove 120, thereby realizing the combined installation of one side of the prefabricated wall 100 and the concrete frame and ensuring the reliability of the installation of the prefabricated wall 100 and the concrete frame.

[0074] Furthermore, to achieve the prior design of the clamping strip block 200 and drive the clamping strip block 200, through holes 220 are provided on the clamping strip block 200. The through holes 220 are arranged at equal intervals along the length direction of the clamping strip block 200 and are multiple. A coupling pin 230 is arranged in the through hole 220. One end of the coupling pin 230 extending into the cavity 110 is connected to a driving device. The coupling pin 230 drives the clamping strip block 200 to protrude out of the notch of the clamping groove 120 and forms a plug-in fit with a reserved hole on an adjacent precast wall or concrete frame. At the same time, a plug-in hole is arranged on one side of the concrete frame or on the other side of the precast wall 100 to ensure reliable connection between precast walls 100 and between the precast wall 100 and the concrete frame. Not only can the coupling pin 230 drive the clamping strip block 200 to protrude out of the notch of the clamping groove 120 and be inserted into the reserved hole on the precast wall or concrete frame to form a plug-in fit, but also when installing the precast wall 100, the coupling pin 230 can form a plug-in fit with the reserved hole on the precast wall or concrete frame to ensure reliable connection between the two precast components.

[0075] As Figure 6 and Figure 7 shown, to achieve the connection between the coupling pin 230 and the precast wall 100, a first sunk groove 221 is arranged at one end of the through hole 220 away from the cavity 110. The first sunk groove 221 is arranged on the bottom surface of the clamping strip block 200. The coupling pin 230 passes through the through hole 220 and a first coupling gasket 231 is machined on the pin body. The first coupling gasket 231 approaches or separates from the bottom of the first sunk groove 221. When the driving device drives the clamping strip block 200 to protrude out of the notch of the clamping groove 120, the first coupling gasket 231 on the coupling pin 230 approaches the bottom of the first sunk groove 221, thereby realizing the connection drive of the clamping strip block 200 (mainly used for the return of the clamping strip block 200 to urge the clamping strip block 200 to return into the clamping groove 120).

[0076] As Figure 6 and Figure 8As shown in the figure, to achieve the linkage of the clamping strip block 200, in the non-use state, the clamping strip block 200 is located in the clamping groove 120. At the other end of the through hole 220 close to the groove cavity 110, a second sunk groove 222 is machined. The second sunk groove 222 is arranged on the top surface of the clamping strip block 200. A second bonding gasket 232 is correspondingly machined on the pin body of the combined pin 230. The second bonding gasket 232 is close to or away from the bottom of the second sunk groove 222. Before the precast wall 100 is hoisted, the second bonding gasket 232 is close to the bottom of the second sunk groove 222, so that the clamping strip block 200 is clamped in the clamping groove 120, keeping a certain distance between the precast wall 100 and the concrete frame, which can facilitate the installation of the two components and avoid the problem of difficult construction caused by bumping.

[0077] More optimally, to achieve the rapid combined installation of the precast wall 100 and the concrete frame, one end of the combined pin 230 is provided with a ball 233. The ball 233 protrudes out of the notch of the clamping groove 120. When the lower end of the precast wall 100 approaches and is inserted into the precast floor slab, in order to make the combined pin 230 directly contact one side of the concrete frame or the other side of the precast wall 100, the ball 233 contacts one side of the precast wall 100 or one side of the concrete frame, so that the precast wall 100 can move down conveniently and smoothly until the precast wall 100 can be completely combined with the precast floor slab, thus completing the combined installation of the precast wall 100 and the precast floor slab.

[0078] Embodiment 2

[0079] A prefabricated building wall in this embodiment has basically the same main structure as that in Embodiment 1. The main difference from Embodiment 1 is that the driving device includes driving pins 240, a driving plate 241, a driving wheel 242 and a driving wedge block 239. A plurality of driving pins 240 are provided, arranged on the same side of the combined convex block 300 and all vertically arranged along the length direction of the side wall of the groove cavity 110. The end of the driving pin 240 located in the groove cavity 110 is fixedly connected to the driving plate 241. A driving wheel 242 is fixedly installed on the driving plate 241. The driving wheel 242 abuts against one side of the driving wedge block 239. The other side of the driving wedge block 239 is connected to the driving support plate 234 through an extrusion wedge block 2391.

[0080] Specifically, as Figure 3-5As shown, on the one hand, the driving support plate 234 is slidably connected to the support sliding rod 235, and on the other hand, it is fixedly connected to the coupling pin 230. The driving support plate 234 and the support sliding rod 235 form a sliding support fit. The support sliding rod 235 is arranged in parallel with the coupling pin 230. The support sliding rod 235 is vertically arranged on the side wall of the cavity 110, and a support spring 236 is sleeved on the support sliding rod 235. The two ends of the support spring 236 respectively abut against the driving support plate 234 and one side wall of the cavity 110. Under the support and reset of the support spring 236, before the precast wall 100 is hoisted and used, the clamping strip block 200 is made to be in the clamping groove 120, thereby completing the reset of the clamping strip block 200.

[0081] Furthermore, for the convenience of installing the entire device in the cavity 110 of the precast wall 100 to facilitate the installation of the device at the construction site, a clamping groove 111 is provided on one side wall of the cavity 110. The connecting strip block 237 is clamped in the clamping groove 111. One end of the support sliding rod 235 is fixed on the connecting strip block 237 to complete the installation. One end of the support spring 236 abuts against the connecting strip block 237. When installing the above components, the connecting strip block 237 is clamped in the clamping groove 111, and each component is installed in the cavity 110 at the construction site, which is convenient for temporary replacement or debugging and reduces the overall construction cost.

[0082] Furthermore, the combined sealing strip 400 is installed at one end of the sealing bracket 410. The other end of the sealing bracket 410 penetrates through the side wall of the cavity 110 and is slidably installed on the guiding sliding rod 420. The guiding sliding rod 420 is installed on the side wall of the cavity 110, and a guiding spring 421 is sleeved on the guiding sliding rod 420. Specifically, in this embodiment, the rod end of the guiding sliding rod 420 is connected to the connecting strip block 237 on the side wall of the cavity 110. The two ends of the guiding spring 421 respectively abut against the connecting strip block 237 and the sealing bracket 410. The sealing bracket 410 is driven to be connected with the driving wedge block 239 through the driving head 238. Specifically, in this embodiment, a driving head 238 is provided on the driving support plate 234, and the driving head 238 abuts against or separates from the sealing bracket 410. In another implementation manner, the driving head 238 can also be directly provided on the extrusion wedge block 2391, and the driving head 238 abuts against or separates from the sealing bracket 410.

[0083] With the above settings, the installation and protrusion of the combined sealing strip 400 can be achieved, thereby completing the connection between the combined sealing strip 400 and the slot wall of the clamping groove of the concrete frame or the precast wall 100 to ensure the sealing between precast walls 100 and between the precast wall 100 and the concrete frame. When the driving support plate 234 drives the combined bolt 230, the combined bolt 230 is inserted into the jack on one side of the precast wall 100 or the combined bolt 230 is inserted into the jack on one side of the concrete frame. At the same time, the driving head 238 is linked to abut against the sealing support 410, and then the sealing strip 400 is linked to protrude from one side of the clamping strip 200, so as to realize the combination of the combined sealing strip 400 and the slot wall of the clamping groove of the concrete frame or the precast wall 100, and complete the sealing combination of the joints of the two workpieces.

[0084] Furthermore, to ensure the reliable use of the combined bolt 230, one end of the combined bolt 230 is slidably connected to the driving support plate 234. The rod end of the combined bolt 230 extending into the cavity 110, that is, a telescopic spring 23a is sleeved on the pin body of the combined bolt 230 between the second combined gasket 232 and the driving support plate 234. The two ends of the telescopic spring 23a respectively abut against the combined bolt 230 and the driving support plate 234 to realize the reset of the combined bolt 230. When hoisting the precast wall 100, when the combined bolt 230 is not inserted into the jack on the other side of the precast wall 100 or the jack on one side of the concrete frame, the above combined bolt 230 compresses the telescopic spring 23a until the combined bolt 230 approaches and extends into the jack, and the telescopic spring 23a drives the combined bolt 230 to be inserted into the jack to complete the locking combination between the precast walls 100 and between the precast wall 100 and the concrete frame.

[0085] When the precast wall 100 is combined with the precast floor slab, when driving the driving pin 240, the driving pin 240 is combined with the precast floor slab, and the driving wheel 242 fixedly installed on the driving plate 241 abuts against the driving wedge 239. Since the driving wheel 242 abuts against the inclined surface of the driving wedge 239, the driving wedge 239 moves horizontally to the left, and the driving support plate 234 is linked to move horizontally, and then until the clamping strip 200 together with the combined sealing strip 400 protrudes to be hermetically connected to the concrete frame.

[0086] Further, when the lower end of the precast wall 100 is combined and sealed with the precast floor slab, a sealing groove is provided around the engaging convex block 300, and the sealing sleeve 500 is arranged around the sealing groove. The sealing sleeve 500 is installed on the surrounding bracket 510, and the surrounding bracket 510 is vertically slidably arranged on the engaging convex block 300 and extends into the cavity 110. The part of the surrounding bracket 510 extending into the cavity 110 is slidably installed on the sliding rod 520. An installation bracket 530 is arranged in the cavity 110, the sliding rod 520 is vertically installed on the installation bracket 530, a coupling spring 540 is sleeved on the sliding rod 520, and the two ends of the coupling spring 540 respectively abut against the installation bracket 530 and the surrounding bracket 510.

[0087] When the hoisting equipment hoists the entire precast wall 100 and combines it with the precast floor slab, the above-mentioned driving pin 240 abuts against the precast floor slab, and the surrounding bracket 510 is linked to move vertically downward through the driving wedge 239, so that the sealing sleeve 500 protrudes out of the sealing groove and then combines with the precast floor slab to ensure the sealed combination of the precast wall 100 and the precast floor slab.

[0088] An extrusion roller 550 is fixedly installed on the surrounding bracket 510, and the rim of the extrusion roller 550 abuts against the bottom of the extrusion wedge 2391 to realize the synchronous linkage of the engaging bolt 230 and the sealing sleeve 500. Specifically, when the hoisting equipment hoists the entire precast wall 100 and is in the process of descending, under the self-weight of the precast wall 100, the extrusion wedge 239 abuts against the rim of the extrusion roller 550, thereby linking the combined sealing of the clamping strip 200 and the concrete frame, and the sealed combination of the precast wall 100 and the precast floor slab.

[0089] More preferably, to realize the combination between the precast wall 100 and the precast floor slab, a perforation is provided at the lower end of the precast wall 100, the perforation penetrates into the cavity 110, an insertion pipe is arranged at the orifice of the perforation, a jack hole 140 is provided at the upper end of the precast wall 100, the jack hole 140 penetrates into the cavity 110, a abutting pipe 150 is arranged at the lower orifice of the jack hole 140, and the position and number of the jack hole 140 correspond to those of the driving pin 240.

[0090] The following introduces a rapid construction method for the prefabricated building wall based on BIM technology, and this method includes the following steps:

[0091] The first step: Create a three-dimensional model of the construction project based on BIM technology, optimize the design, construction, and operation plans of the building through the three-dimensional model, and design and process prefabricated components based on this.

[0092] Step 2: Reserve a cavity 110 on the reserved steel bars of the precast wall 100, reserve and install the abutting pipe 150 on the steel bars, embed each forming part, and then pour concrete until the precast wall 100 is formed, so that a reserved cavity 110, a clamping groove 120, a perforation, and an insertion hole 140 are formed on the precast wall 100;

[0093] Step 3: Transport the precast wall 100, and install the combined convex block 300, the combined sealing strip 400, the sealing sleeve 500, the clamping strip block 200 and the combined driving device in the cavity 110 at the job site to complete the installation of the precast wall 100;

[0094] Step 4: Pour a concrete frame at the job site in advance, and reserve a mutually matching clamping groove on one side of the concrete frame close to the precast wall 100;

[0095] Step 5: Install the precast floor slab by a hoisting device. After the precast floor slab is installed, install the precast wall 100 by the hoisting device;

[0096] Step 6: Make the precast wall 100 combined with the frame through the above-mentioned clamping strip block 200 and the combined sealing strip 400, and make the precast walls 100 combined and fixed with each other through the clamping strip block 200 and the combined sealing strip 400;

[0097] Step 7: Make the lower end of the precast wall 100 combined with the precast floor slab through the above-mentioned combined convex block 300 and the sealing sleeve 500, and make the upper and lower ends of the precast wall 100 combined and fixed through the combined convex block 300 and the sealing sleeve 500;

[0098] Step 8: Install precast stairs, balconies, external hanging scaffolds and other precast components;

[0099] Step 9: Final inspection;

[0100] In the third step, the precast components on site are placed in zones according to the project type, model, and installation sequence;

[0101] During the hoisting and lowering process of the precast wall 100, when the precast wall 100 is close to the precast floor slab, first manually adjust the polyurethane resin installation guide to the insertion pipe, and then slowly install the reserved steel bars into the steel bar sleeve along the guide; before the steel bars of the precast wall 100 are tied, spray a polymer bonding mortar layer with a thickness of 3-5 mm on the concrete surface to be poured.

[0102] The BIM technology is architected based on the Revit platform, and the system includes the following modules: a model input module, which is used to create virtual design drawings of different types of building facilities and create process templates of building facilities based on the BIM technology;

[0103] A model parsing module, which is used to plan the process template of the created building facilities, split building components according to the principle of taking changed nodes and the connection points between the building standard sections and non-standard connection points as the splitting points, and obtain the creation instructions for the BIM component model;

[0104] A model loading module, which is used to respond to the creation instructions of the BIM component model, load the model data corresponding to the target BIM component model, parse the Revit index file in the model data, and obtain the BIM file;

[0105] A model creation module, which is used to establish the axis network coordinate system of the components in the obtained BIM file after determining the coordinate parameters of each point in the component, supplement and extract the design information of the components of the BIM model, determine the endpoint coordinates and break point coordinates of the BIM model components, and create the corresponding preset model and display it according to the coordinate grid data and material data of the corresponding model;

[0106] A model adjustment module, which is used to input parameters to change the parametric component family of the geometric shape of the model, perform safety adjustment, and determine the BIM model of the building facilities based on the Revit platform;

[0107] A model uploading module, which is used to upload the model to the BIM model resource library, classify and manage the model according to its type, and store it in the cloud platform;

[0108] A model extraction module, which is used for administrators and users in the system to extract and apply the model, and present it in the form of a thumbnail list.

[0109] The model data corresponding to the target BIM component model is imported into the component model file based on the CAD drawing. The CAD drawing file is in DXF format, and the system obtains the storage path of the CAD file, obtains the drawing data of the CAD drawing file, and converts the drawing into a data format file.

[0110] The data of the CAD drawing file also includes the ID of the CAD file, the file name, the storage path of the file, and the upload time. The data format of the data format file is the.index file format type.

[0111] The model extraction module is loaded in the management background of the preset model creation system. The management background of the preset model creation system can display the classification types of the BIM model, display the preset models created by BIM according to the type classification, and display the hierarchical information of the BIM model.

[0112] The model extraction module can also analyze the text file of the BIM model from the structural calculation instructions of the Revit platform based on the.csv format file of the BIM model, and export the text format of the text file.

[0113] Import the components of each design of the above-mentioned building wall into the Revit platform of the above-mentioned BIM technology for design analysis, and export the structural strength, construction cost and assembly risk of each component to provide to the construction unit as a reference for the construction unit.

[0114] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A prefabricated building wall based on BIM technology, including a precast wall (100), characterized in that, It further includes a sealing sleeve (500), wherein: A clamping strip block (200) and a coupling convex block (300) are installed on the assembling side of the precast wall body (100), and the clamping strip block (200) and the coupling convex block (300) are respectively located on different assembling sides of the precast wall body (100); A coupling sealing strip (400) is arranged around the clamping strip block (200); a sealing sleeve (500) is arranged around the coupling convex block (300); A cavity (110) is machined on one side surface of the precast wall body (100), and a driving device is arranged in the cavity (110). The driving device is used to drive the clamping strip block (200) and the coupling sealing strip (400) to protrude from the assembling side of the precast wall body (100), and the driving device is also connected to the sealing sleeve (500) to drive the sealing sleeve (500) to protrude from the assembling side of the coupling convex block (300); A clamping groove (120) is arranged on the assembling side of the precast wall body (100), and the clamping strip block (200) is arranged in the clamping groove (120); the cross-section of the clamping strip block (200) is integrally trapezoidal, and arc-shaped clamping grooves (210) are arranged on the side walls where the two waists of the clamping strip block (200) are located. The arc-shaped clamping grooves (210) are arranged along the length direction of the clamping strip block (200) in a penetrating manner, and the coupling sealing strip (400) is installed in the arc-shaped clamping grooves (210); A plurality of through holes (220) are machined through the clamping strip block (200) along its length direction. A coupling pin (230) is inserted and installed in each through hole (220). One end of the coupling pin (230) extending into the cavity (110) is connected to the driving device, and the other end extending out of the clamping strip block (200) is provided with a ball (233). The coupling pin (230) is used to drive the clamping strip block (200) to protrude from the clamping groove (120); A first sinking groove (221) is machined at one end of the through hole (220) close to the cavity (110), and a first coupling gasket (231) is correspondingly machined on the pin body of the coupling pin (230). The first coupling gasket (231) is close to or away from the bottom of the first sinking groove (221); A second sinking groove (222) is machined at the other end of the through hole (220) away from the cavity (110), and a second coupling gasket (232) is correspondingly machined on the pin body of the coupling pin (230). The second coupling gasket (232) is close to or away from the bottom of the second sinking groove (222).

2. The prefabricated building wall based on BIM technology according to claim 1, wherein: The driving device includes driving pins (240), a driving plate (241), a driving wheel (242) and a driving wedge (239). A plurality of driving pins (240) are provided, all vertically arranged along the length direction of the side wall of the groove cavity (110). The end of the driving pin (240) located in the groove cavity (110) is fixedly connected to the driving plate (241). A driving wheel (242) is fixedly installed on the driving plate (241). The driving wheel (242) abuts against one side of the driving wedge (239). The other side of the driving wedge (239) is connected to the driving support plate (234) through an extrusion wedge (2391). The driving support plate (234) is slidably connected to the support slide bar (235) on the one hand and fixedly connected to the coupling pin (230) on the other hand. The support slide bar (235) and the coupling pin (230) are arranged in parallel. The support slide bar (235) is vertically arranged on the side wall of the groove cavity (110). A support spring (236) is sleeved on the support slide bar (235). An expansion spring (23a) is sleeved on the pin body of the coupling pin (230) between the first coupling gasket (231) and the driving support plate (234).

3. The prefabricated building wall based on BIM technology according to claim 2, characterized in that: The coupling sealing strip (400) is installed at one end of the sealing bracket (410). The other end of the sealing bracket (410) penetrates the side wall of the groove cavity (110) and is slidably installed on the guiding slide bar (420). The sealing bracket (410) is drivingly connected to the driving wedge (239) through a driving head (238). The guiding slide bar (420) is installed on the side wall of the groove cavity (110). A guiding spring (421) is sleeved on the guiding slide bar (420).

4. The prefabricated building wall based on BIM technology according to claim 3, wherein: The sealing sleeve (500) is installed on the surrounding bracket (510). An installation bracket (530) is arranged in the groove cavity (110). A slide bar (520) is provided on the installation bracket (530). The surrounding bracket (510) is slidably installed on the slide bar (520). A coupling spring (540) is sleeved on the slide bar (520). The two ends of the coupling spring (540) respectively abut against the installation bracket (530) and the surrounding bracket (510). An extrusion roller (550) is fixedly installed on the surrounding bracket (510). The rim of the extrusion roller (550) abuts against the bottom of the extrusion wedge (2391).

5. A prefabricated building wall based on BIM technology according to any one of claims 2-4, characterized in that: A clamping groove (111) is machined on the side wall of the groove cavity (110) where the clamping strip block (200) is located. A connecting strip block (237) is installed in the clamping groove (111). A sealing groove is provided around the coupling convex block (300). The sealing sleeve (500) is arranged around the sealing groove.

6. A rapid construction method for prefabricated building walls based on BIM technology as described in claim 5, characterized in that, Including the following steps: The first step: Create a three-dimensional model of the construction project based on BIM technology. Design the design, construction and operation plans of the building through the three-dimensional model, and design and process precast components based on this. Step 2: Reserve a cavity (110) on the reserved steel bars of the precast wall (100), reserve and install the abutting pipe (150) on the steel bars, embed each forming part, and then pour concrete until the precast wall (100) is formed, so that a reserved cavity (110), a clamping groove (120), a perforation, and an insertion hole (140) are formed on the precast wall (100); Step 3: Transport the precast wall (100), and install the engaging bump (300), the engaging sealing strip (400), the sealing sleeve (500), the clamping strip block (200) and the driving device in the cavity (110) at the job site to complete the installation of the precast wall (100); Step 4: Pour a concrete frame at the job site in advance, and reserve a clamping groove for cooperation on the side of the concrete frame close to the precast wall (100); Step 5: Install the precast floor slab by a hoisting device. After the precast floor slab is installed, install the precast wall (100) by the hoisting device; Step 6: Through the above-mentioned clamping strip block (200) and the engaging sealing strip (400), the precast wall (100) is combined with the frame, and through the clamping strip block (200) and the engaging sealing strip (400), the precast walls (100) are combined and fixed; Step 7: Through the above-mentioned engaging bump (300) and the sealing sleeve (500), the lower end of the precast wall (100) is combined with the precast floor slab, and through the engaging bump (300) and the sealing sleeve (500), the upper and lower ends of the precast wall (100) are combined and fixed; Step 8: Install precast stairs, balconies, external hanging scaffolds and other precast components; Step 9: Final inspection and verification; Among them, in Step 3, the precast components on site are placed in partitions according to the project type, model, and installation sequence; During the hoisting and lowering process of the precast wall (100), when the precast wall (100) is close to the precast floor slab, first manually adjust the polyurethane resin installation guide to the insertion pipe, and then slowly install the reserved steel bars into the steel bar sleeve along the guide; before the steel bars of the precast wall (100) are tied, spray a polymer bonding mortar layer with a thickness of 3 - 5 mm on the concrete pouring surface to be poured; 7. The rapid construction method of the prefabricated building wall based on BIM technology according to claim 6, characterized in that: The BIM technology is based on the Revit platform for architecture, and the system includes the following modules: A model input module, which is used to create virtual design drawings of different types of building facilities and create a process template of the building facilities based on the BIM technology; A model parsing module, which is used to plan the process template of the created building facilities, split the building components according to the principle of taking the changed nodes and the building standard section and non-standard connection points as the splitting points, and obtain the creation instructions of the BIM component model; A model loading module, which is used to respond to the creation instructions of the BIM component model, load the model data corresponding to the target BIM component model, and parse the index file of Revit in the model data to obtain the BIM file; A model creation module, which is used to establish the axis network coordinate system of the component in the BIM file obtained after determining the coordinate parameters of each point in the component, supplement and extract the design information of the components in the BIM model, determine the endpoint coordinates and breakpoint coordinates of the BIM model components, and create and display the corresponding preset model according to the corresponding coordinate grid data and material data of the model; A model adjustment module, which is used to input parameters to change the parametric component family of the geometric shape of the model, and perform safety adjustments to determine the BIM model of the building facility based on the Revit platform; A model upload module, which is used to upload the model to the BIM model resource library, and classify and manage the model according to its type and store it in the cloud platform; A model extraction module, which is used for administrators and users in the system to extract and apply the model, and present it in the form of a thumbnail list.

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